2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1999-2007 The OpenLDAP Foundation.
5 * Portions Copyright 2001-2003 Pierangelo Masarati.
6 * Portions Copyright 1999-2003 Howard Chu.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted only as authorized by the OpenLDAP
13 * A copy of this license is available in the file LICENSE in the
14 * top-level directory of the distribution or, alternatively, at
15 * <http://www.OpenLDAP.org/license.html>.
18 * This work was initially developed by the Howard Chu for inclusion
19 * in OpenLDAP Software and subsequently enhanced by Pierangelo
27 #include <ac/socket.h>
28 #include <ac/string.h>
33 #include "../back-ldap/back-ldap.h"
34 #include "back-meta.h"
35 #undef ldap_debug /* silence a warning in ldap-int.h */
37 #include "../../../libraries/libldap/ldap-int.h"
39 /* IGNORE means that target does not (no longer) participate
41 * NOTREADY means the search on that target has not been initialized yet
43 #define META_MSGID_IGNORE (-1)
44 #define META_MSGID_NEED_BIND (-2)
45 #define META_MSGID_CONNECTING (-3)
55 typedef enum meta_search_candidate_t {
56 META_SEARCH_UNDEFINED = -2,
58 META_SEARCH_NOT_CANDIDATE,
59 META_SEARCH_CANDIDATE,
61 META_SEARCH_NEED_BIND,
62 META_SEARCH_CONNECTING
63 } meta_search_candidate_t;
66 * meta_search_dobind_init()
68 * initiates bind for a candidate target of a search.
70 static meta_search_candidate_t
71 meta_search_dobind_init(
76 SlapReply *candidates )
78 metaconn_t *mc = *mcp;
79 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
80 metatarget_t *mt = mi->mi_targets[ candidate ];
81 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
83 struct berval binddn = msc->msc_bound_ndn,
89 meta_search_candidate_t retcode;
91 Debug( LDAP_DEBUG_TRACE, "%s >>> meta_search_dobind_init[%d]\n",
92 op->o_log_prefix, candidate, 0 );
95 * all the targets are already bound as pseudoroot
97 if ( mc->mc_authz_target == META_BOUND_ALL ) {
98 return META_SEARCH_CANDIDATE;
101 retcode = META_SEARCH_BINDING;
102 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
103 if ( LDAP_BACK_CONN_ISBOUND( msc ) || LDAP_BACK_CONN_ISANON( msc ) ) {
104 /* already bound (or anonymous) */
107 char buf[ SLAP_TEXT_BUFLEN ] = { '\0' };
110 if ( LDAP_BACK_CONN_ISBOUND( msc ) ) {
114 snprintf( buf, sizeof( buf ), " mc=%p ld=%p%s DN=\"%s\"",
115 (void *)mc, (void *)msc->msc_ld,
116 bound ? " bound" : " anonymous",
117 bound == 0 ? "" : msc->msc_bound_ndn.bv_val );
118 Debug( LDAP_DEBUG_ANY, "### %s meta_search_dobind_init[%d]%s\n",
119 op->o_log_prefix, candidate, buf );
120 #endif /* DEBUG_205 */
122 retcode = META_SEARCH_CANDIDATE;
124 } else if ( META_BACK_CONN_CREATING( msc ) || LDAP_BACK_CONN_BINDING( msc ) ) {
125 /* another thread is binding the target for this conn; wait */
128 char buf[ SLAP_TEXT_BUFLEN ] = { '\0' };
130 snprintf( buf, sizeof( buf ), " mc=%p ld=%p needbind",
131 (void *)mc, (void *)msc->msc_ld );
132 Debug( LDAP_DEBUG_ANY, "### %s meta_search_dobind_init[%d]%s\n",
133 op->o_log_prefix, candidate, buf );
134 #endif /* DEBUG_205 */
136 candidates[ candidate ].sr_msgid = META_MSGID_NEED_BIND;
137 retcode = META_SEARCH_NEED_BIND;
140 /* we'll need to bind the target for this conn */
143 char buf[ SLAP_TEXT_BUFLEN ];
145 snprintf( buf, sizeof( buf ), " mc=%p ld=%p binding",
146 (void *)mc, (void *)msc->msc_ld );
147 Debug( LDAP_DEBUG_ANY, "### %s meta_search_dobind_init[%d]%s\n",
148 op->o_log_prefix, candidate, buf );
149 #endif /* DEBUG_205 */
151 if ( msc->msc_ld == NULL ) {
152 /* for some reason (e.g. because formerly in "binding"
153 * state, with eventual connection expiration or invalidation)
154 * it was not initialized as expected */
156 Debug( LDAP_DEBUG_ANY, "%s meta_search_dobind_init[%d] mc=%p ld=NULL\n",
157 op->o_log_prefix, candidate, (void *)mc );
159 rc = meta_back_init_one_conn( op, rs, *mcp, candidate,
160 LDAP_BACK_CONN_ISPRIV( *mcp ), LDAP_BACK_DONTSEND, 0 );
163 assert( msc->msc_ld != NULL );
166 case LDAP_SERVER_DOWN:
167 case LDAP_UNAVAILABLE:
168 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
172 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
177 LDAP_BACK_CONN_BINDING_SET( msc );
180 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
182 if ( retcode != META_SEARCH_BINDING ) {
186 /* NOTE: this obsoletes pseudorootdn */
187 if ( op->o_conn != NULL &&
188 !op->o_do_not_cache &&
189 ( BER_BVISNULL( &msc->msc_bound_ndn ) ||
190 BER_BVISEMPTY( &msc->msc_bound_ndn ) ||
191 ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) )
193 rc = meta_back_proxy_authz_cred( mc, candidate, op, rs, LDAP_BACK_DONTSEND, &binddn, &cred, &method );
194 if ( rc != LDAP_SUCCESS ) {
198 /* NOTE: we copy things here, even if bind didn't succeed yet,
199 * because the connection is not shared until bind is over */
200 if ( !BER_BVISNULL( &binddn ) ) {
201 ber_bvreplace( &msc->msc_bound_ndn, &binddn );
202 if ( LDAP_BACK_SAVECRED( mi ) && !BER_BVISNULL( &cred ) ) {
203 if ( !BER_BVISNULL( &msc->msc_cred ) ) {
204 memset( msc->msc_cred.bv_val, 0,
205 msc->msc_cred.bv_len );
207 ber_bvreplace( &msc->msc_cred, &cred );
211 if ( LDAP_BACK_CONN_ISBOUND( msc ) ) {
212 /* apparently, idassert was configured with SASL bind,
213 * so bind occurred inside meta_back_proxy_authz_cred() */
214 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
215 LDAP_BACK_CONN_BINDING_CLEAR( msc );
216 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
217 return META_SEARCH_CANDIDATE;
223 case LDAP_AUTH_SIMPLE:
224 /* do a simple bind with binddn, cred */
233 assert( msc->msc_ld != NULL );
235 /* connect must be async only the first time... */
236 ldap_set_option( msc->msc_ld, LDAP_OPT_CONNECT_ASYNC, LDAP_OPT_ON );
239 rc = ldap_sasl_bind( msc->msc_ld, binddn.bv_val, LDAP_SASL_SIMPLE, &cred,
240 NULL, NULL, &candidates[ candidate ].sr_msgid );
244 char buf[ SLAP_TEXT_BUFLEN ];
246 snprintf( buf, sizeof( buf ), "meta_search_dobind_init[%d] mc=%p ld=%p rc=%d",
247 candidate, (void *)mc, (void *)mc->mc_conns[ candidate ].msc_ld, rc );
248 Debug( LDAP_DEBUG_ANY, "### %s %s\n",
249 op->o_log_prefix, buf, 0 );
251 #endif /* DEBUG_205 */
255 assert( candidates[ candidate ].sr_msgid >= 0 );
256 META_BINDING_SET( &candidates[ candidate ] );
257 return META_SEARCH_BINDING;
259 case LDAP_X_CONNECTING:
260 /* must retry, same conn */
261 candidates[ candidate ].sr_msgid = META_MSGID_CONNECTING;
262 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
263 LDAP_BACK_CONN_BINDING_CLEAR( msc );
264 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
265 return META_SEARCH_CONNECTING;
267 case LDAP_SERVER_DOWN:
269 /* This is the worst thing that could happen:
270 * the search will wait until the retry is over. */
271 if ( !META_IS_RETRYING( &candidates[ candidate ] ) ) {
272 META_RETRYING_SET( &candidates[ candidate ] );
274 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
276 assert( mc->mc_refcnt > 0 );
277 if ( LogTest( LDAP_DEBUG_ANY ) ) {
278 char buf[ SLAP_TEXT_BUFLEN ];
280 /* this lock is required; however,
281 * it's invoked only when logging is on */
282 ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex );
283 snprintf( buf, sizeof( buf ),
284 "retrying URI=\"%s\" DN=\"%s\"",
286 BER_BVISNULL( &msc->msc_bound_ndn ) ?
287 "" : msc->msc_bound_ndn.bv_val );
288 ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex );
290 Debug( LDAP_DEBUG_ANY,
291 "%s meta_search_dobind_init[%d]: %s.\n",
292 op->o_log_prefix, candidate, buf );
295 meta_clear_one_candidate( op, mc, candidate );
296 LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
298 ( void )rewrite_session_delete( mt->mt_rwmap.rwm_rw, op->o_conn );
300 /* mc here must be the regular mc, reset and ready for init */
301 rc = meta_back_init_one_conn( op, rs, mc, candidate,
302 LDAP_BACK_CONN_ISPRIV( mc ), LDAP_BACK_DONTSEND, 0 );
304 if ( rc == LDAP_SUCCESS ) {
305 LDAP_BACK_CONN_BINDING_SET( msc );
308 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
310 if ( rc == LDAP_SUCCESS ) {
311 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
316 if ( *mcp == NULL ) {
317 retcode = META_SEARCH_ERR;
318 rs->sr_err = LDAP_UNAVAILABLE;
319 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
327 rc = slap_map_api2result( rs );
329 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
330 meta_clear_one_candidate( op, mc, candidate );
331 candidates[ candidate ].sr_err = rc;
332 if ( META_BACK_ONERR_STOP( mi ) ) {
333 LDAP_BACK_CONN_TAINTED_SET( mc );
334 meta_back_release_conn_lock( mi, mc, 0 );
338 retcode = META_SEARCH_ERR;
341 retcode = META_SEARCH_NOT_CANDIDATE;
343 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
344 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
351 static meta_search_candidate_t
352 meta_search_dobind_result(
357 SlapReply *candidates,
360 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
361 metaconn_t *mc = *mcp;
362 metasingleconn_t *msc = &mc->mc_conns[ candidate ];
364 meta_search_candidate_t retcode = META_SEARCH_NOT_CANDIDATE;
367 assert( msc->msc_ld != NULL );
369 /* FIXME: matched? referrals? response controls? */
370 rc = ldap_parse_result( msc->msc_ld, res,
371 &candidates[ candidate ].sr_err,
372 NULL, NULL, NULL, NULL, 0 );
373 if ( rc != LDAP_SUCCESS ) {
374 candidates[ candidate ].sr_err = rc;
377 rc = slap_map_api2result( &candidates[ candidate ] );
380 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
381 LDAP_BACK_CONN_BINDING_CLEAR( msc );
382 if ( rc != LDAP_SUCCESS ) {
383 meta_clear_one_candidate( op, mc, candidate );
384 candidates[ candidate ].sr_err = rc;
385 if ( META_BACK_ONERR_STOP( mi ) ) {
386 LDAP_BACK_CONN_TAINTED_SET( mc );
387 meta_back_release_conn_lock( mi, mc, 0 );
389 retcode = META_SEARCH_ERR;
394 /* FIXME: check if bound as idassert authcDN! */
395 if ( BER_BVISNULL( &msc->msc_bound_ndn )
396 || BER_BVISEMPTY( &msc->msc_bound_ndn ) )
398 LDAP_BACK_CONN_ISANON_SET( msc );
401 LDAP_BACK_CONN_ISBOUND_SET( msc );
403 retcode = META_SEARCH_CANDIDATE;
405 /* connect must be async */
406 ldap_set_option( msc->msc_ld, LDAP_OPT_CONNECT_ASYNC, LDAP_OPT_OFF );
409 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
410 META_BINDING_CLEAR( &candidates[ candidate ] );
412 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
417 static meta_search_candidate_t
418 meta_back_search_start(
424 SlapReply *candidates )
426 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
427 metatarget_t *mt = mi->mi_targets[ candidate ];
428 metasingleconn_t *msc = &(*mcp)->mc_conns[ candidate ];
429 struct berval realbase = op->o_req_dn;
430 int realscope = op->ors_scope;
431 struct berval mbase = BER_BVNULL;
432 struct berval mfilter = BER_BVNULL;
433 char **mapped_attrs = NULL;
435 meta_search_candidate_t retcode;
436 struct timeval tv, *tvp = NULL;
438 LDAPControl **ctrls = NULL;
440 /* this should not happen; just in case... */
441 if ( msc->msc_ld == NULL ) {
442 Debug( LDAP_DEBUG_ANY,
443 "%s: meta_back_search_start candidate=%d ld=NULL%s.\n",
444 op->o_log_prefix, candidate,
445 META_BACK_ONERR_STOP( mi ) ? "" : " (ignored)" );
446 candidates[ candidate ].sr_err = LDAP_OTHER;
447 if ( META_BACK_ONERR_STOP( mi ) ) {
448 return META_SEARCH_ERR;
450 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
451 return META_SEARCH_NOT_CANDIDATE;
454 Debug( LDAP_DEBUG_TRACE, "%s >>> meta_back_search_start[%d]\n", op->o_log_prefix, candidate, 0 );
457 * modifies the base according to the scope, if required
459 if ( mt->mt_nsuffix.bv_len > op->o_req_ndn.bv_len ) {
460 switch ( op->ors_scope ) {
461 case LDAP_SCOPE_SUBTREE:
463 * make the target suffix the new base
464 * FIXME: this is very forgiving, because
465 * "illegal" searchBases may be turned
466 * into the suffix of the target; however,
467 * the requested searchBase already passed
468 * thru the candidate analyzer...
470 if ( dnIsSuffix( &mt->mt_nsuffix, &op->o_req_ndn ) ) {
471 realbase = mt->mt_nsuffix;
472 if ( mt->mt_scope == LDAP_SCOPE_SUBORDINATE ) {
473 realscope = LDAP_SCOPE_SUBORDINATE;
478 * this target is no longer candidate
480 retcode = META_SEARCH_NOT_CANDIDATE;
485 case LDAP_SCOPE_SUBORDINATE:
486 case LDAP_SCOPE_ONELEVEL:
488 struct berval rdn = mt->mt_nsuffix;
489 rdn.bv_len -= op->o_req_ndn.bv_len + STRLENOF( "," );
490 if ( dnIsOneLevelRDN( &rdn )
491 && dnIsSuffix( &mt->mt_nsuffix, &op->o_req_ndn ) )
494 * if there is exactly one level,
495 * make the target suffix the new
496 * base, and make scope "base"
498 realbase = mt->mt_nsuffix;
499 if ( op->ors_scope == LDAP_SCOPE_SUBORDINATE ) {
500 if ( mt->mt_scope == LDAP_SCOPE_SUBORDINATE ) {
501 realscope = LDAP_SCOPE_SUBORDINATE;
503 realscope = LDAP_SCOPE_SUBTREE;
506 realscope = LDAP_SCOPE_BASE;
509 } /* else continue with the next case */
512 case LDAP_SCOPE_BASE:
514 * this target is no longer candidate
516 retcode = META_SEARCH_NOT_CANDIDATE;
521 /* initiate dobind */
522 retcode = meta_search_dobind_init( op, rs, mcp, candidate, candidates );
524 Debug( LDAP_DEBUG_TRACE, "%s <<< meta_search_dobind_init[%d]=%d\n", op->o_log_prefix, candidate, retcode );
526 if ( retcode != META_SEARCH_CANDIDATE ) {
531 * Rewrite the search base, if required
534 dc->ctx = "searchBase";
535 switch ( ldap_back_dn_massage( dc, &realbase, &mbase ) ) {
539 case LDAP_UNWILLING_TO_PERFORM:
540 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
541 rs->sr_text = "Operation not allowed";
542 send_ldap_result( op, rs );
543 retcode = META_SEARCH_ERR;
549 * this target is no longer candidate
551 retcode = META_SEARCH_NOT_CANDIDATE;
558 rc = ldap_back_filter_map_rewrite( dc, op->ors_filter,
559 &mfilter, BACKLDAP_MAP );
564 case LDAP_COMPARE_FALSE:
567 * this target is no longer candidate
569 retcode = META_SEARCH_NOT_CANDIDATE;
574 * Maps required attributes
576 rc = ldap_back_map_attrs( &mt->mt_rwmap.rwm_at,
577 op->ors_attrs, BACKLDAP_MAP, &mapped_attrs );
578 if ( rc != LDAP_SUCCESS ) {
580 * this target is no longer candidate
582 retcode = META_SEARCH_NOT_CANDIDATE;
586 /* should we check return values? */
587 if ( op->ors_deref != -1 ) {
588 assert( msc->msc_ld != NULL );
589 (void)ldap_set_option( msc->msc_ld, LDAP_OPT_DEREF,
590 ( void * )&op->ors_deref );
593 if ( op->ors_tlimit != SLAP_NO_LIMIT ) {
594 tv.tv_sec = op->ors_tlimit > 0 ? op->ors_tlimit : 1;
601 if ( ldap_back_proxy_authz_ctrl( &msc->msc_bound_ndn,
602 mt->mt_version, &mt->mt_idassert, op, rs, &ctrls )
605 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
606 retcode = META_SEARCH_NOT_CANDIDATE;
613 assert( msc->msc_ld != NULL );
614 rc = ldap_search_ext( msc->msc_ld,
615 mbase.bv_val, realscope, mfilter.bv_val,
616 mapped_attrs, op->ors_attrsonly,
617 ctrls, NULL, tvp, op->ors_slimit,
618 &candidates[ candidate ].sr_msgid );
621 retcode = META_SEARCH_CANDIDATE;
624 case LDAP_SERVER_DOWN:
625 if ( nretries && meta_back_retry( op, rs, mcp, candidate, LDAP_BACK_DONTSEND ) ) {
627 /* if the identity changed, there might be need to re-authz */
628 (void)ldap_back_proxy_authz_ctrl_free( op, &ctrls );
632 if ( *mcp == NULL ) {
633 retcode = META_SEARCH_ERR;
634 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
640 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
641 retcode = META_SEARCH_NOT_CANDIDATE;
645 (void)ldap_back_proxy_authz_ctrl_free( op, &ctrls );
647 if ( mapped_attrs ) {
648 free( mapped_attrs );
650 if ( mfilter.bv_val != op->ors_filterstr.bv_val ) {
651 free( mfilter.bv_val );
653 if ( mbase.bv_val != realbase.bv_val ) {
654 free( mbase.bv_val );
658 Debug( LDAP_DEBUG_TRACE, "%s <<< meta_back_search_start[%d]=%d\n", op->o_log_prefix, candidate, retcode );
664 meta_back_search( Operation *op, SlapReply *rs )
666 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
668 struct timeval save_tv = { 0, 0 },
670 time_t stoptime = (time_t)(-1),
671 lastres_time = slap_get_time(),
673 int rc = 0, sres = LDAP_SUCCESS;
674 char *matched = NULL;
675 int last = 0, ncandidates = 0,
676 initial_candidates = 0, candidate_match = 0,
678 ldap_back_send_t sendok = LDAP_BACK_SENDERR;
683 SlapReply *candidates = NULL;
686 * controls are set in ldap_back_dobind()
688 * FIXME: in case of values return filter, we might want
689 * to map attrs and maybe rewrite value
692 mc = meta_back_getconn( op, rs, NULL, sendok );
697 dc.conn = op->o_conn;
700 if ( candidates == NULL ) candidates = meta_back_candidates_get( op );
704 for ( i = 0; i < mi->mi_ntargets; i++ ) {
705 /* reset sr_msgid; it is used in most loops
706 * to check if that target is still to be considered */
707 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
709 /* a target is marked as candidate by meta_back_getconn();
710 * if for any reason (an error, it's over or so) it is
711 * no longer active, sr_msgid is set to META_MSGID_IGNORE
712 * but it remains candidate, which means it has been active
713 * at some point during the operation. This allows to
714 * use its response code and more to compute the final
716 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
720 candidates[ i ].sr_matched = NULL;
721 candidates[ i ].sr_text = NULL;
722 candidates[ i ].sr_ref = NULL;
723 candidates[ i ].sr_ctrls = NULL;
725 /* get largest timeout among candidates */
726 if ( mi->mi_targets[ i ]->mt_timeout[ SLAP_OP_SEARCH ]
727 && mi->mi_targets[ i ]->mt_timeout[ SLAP_OP_SEARCH ] > timeout )
729 timeout = mi->mi_targets[ i ]->mt_timeout[ SLAP_OP_SEARCH ];
733 for ( i = 0; i < mi->mi_ntargets; i++ ) {
734 if ( !META_IS_CANDIDATE( &candidates[ i ] )
735 || candidates[ i ].sr_err != LDAP_SUCCESS )
740 switch ( meta_back_search_start( op, rs, &dc, &mc, i, candidates ) )
742 case META_SEARCH_NOT_CANDIDATE:
743 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
746 case META_SEARCH_NEED_BIND:
750 case META_SEARCH_CONNECTING:
751 case META_SEARCH_CANDIDATE:
752 case META_SEARCH_BINDING:
753 candidates[ i ].sr_type = REP_INTERMEDIATE;
757 case META_SEARCH_ERR:
758 savepriv = op->o_private;
759 op->o_private = (void *)i;
760 send_ldap_result( op, rs );
761 op->o_private = savepriv;
771 if ( ncandidates > 0 && needbind == ncandidates ) {
773 * give up the second time...
775 * NOTE: this should not occur the second time, since a fresh
776 * connection has ben created; however, targets may also
777 * need bind because the bind timed out or so.
779 if ( sendok & LDAP_BACK_BINDING ) {
780 Debug( LDAP_DEBUG_ANY,
781 "%s meta_back_search: unable to initialize conn\n",
782 op->o_log_prefix, 0, 0 );
783 rs->sr_err = LDAP_UNAVAILABLE;
784 rs->sr_text = "unable to initialize connection to remote targets";
785 send_ldap_result( op, rs );
790 /* FIXME: better create a separate connection? */
791 sendok |= LDAP_BACK_BINDING;
794 Debug( LDAP_DEBUG_ANY, "*** %s drop mc=%p create new connection\n",
795 op->o_log_prefix, (void *)mc, 0 );
796 #endif /* DEBUG_205 */
798 meta_back_release_conn( mi, mc );
807 initial_candidates = ncandidates;
809 if ( LogTest( LDAP_DEBUG_TRACE ) ) {
810 char cnd[ SLAP_TEXT_BUFLEN ];
813 for ( c = 0; c < mi->mi_ntargets; c++ ) {
814 if ( META_IS_CANDIDATE( &candidates[ c ] ) ) {
822 Debug( LDAP_DEBUG_TRACE, "%s meta_back_search: ncandidates=%d "
823 "cnd=\"%s\"\n", op->o_log_prefix, ncandidates, cnd );
826 if ( initial_candidates == 0 ) {
827 /* NOTE: here we are not sending any matchedDN;
828 * this is intended, because if the back-meta
829 * is serving this search request, but no valid
830 * candidate could be looked up, it means that
831 * there is a hole in the mapping of the targets
832 * and thus no knowledge of any remote superior
834 Debug( LDAP_DEBUG_ANY, "%s meta_back_search: "
835 "base=\"%s\" scope=%d: "
836 "no candidate could be selected\n",
837 op->o_log_prefix, op->o_req_dn.bv_val,
840 /* FIXME: we're sending the first error we encounter;
841 * maybe we should pick the worst... */
842 rc = LDAP_NO_SUCH_OBJECT;
843 for ( i = 0; i < mi->mi_ntargets; i++ ) {
844 if ( META_IS_CANDIDATE( &candidates[ i ] )
845 && candidates[ i ].sr_err != LDAP_SUCCESS )
847 rc = candidates[ i ].sr_err;
852 send_ldap_error( op, rs, rc, NULL );
857 /* We pull apart the ber result, stuff it into a slapd entry, and
858 * let send_search_entry stuff it back into ber format. Slow & ugly,
859 * but this is necessary for version matching, and for ACL processing.
862 if ( op->ors_tlimit != SLAP_NO_LIMIT ) {
863 stoptime = op->o_time + op->ors_tlimit;
867 * In case there are no candidates, no cycle takes place...
869 * FIXME: we might use a queue, to better balance the load
870 * among the candidates
872 for ( rc = 0; ncandidates > 0; ) {
875 alreadybound = ncandidates;
878 if ( timeout && lastres_time > 0
879 && ( slap_get_time() - lastres_time ) > timeout )
882 rs->sr_text = "Operation timed out";
883 rc = rs->sr_err = op->o_protocol >= LDAP_VERSION3 ?
884 LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
885 savepriv = op->o_private;
886 op->o_private = (void *)i;
887 send_ldap_result( op, rs );
888 op->o_private = savepriv;
892 /* check time limit */
893 if ( op->ors_tlimit != SLAP_NO_LIMIT
894 && slap_get_time() > stoptime )
897 rc = rs->sr_err = LDAP_TIMELIMIT_EXCEEDED;
898 savepriv = op->o_private;
899 op->o_private = (void *)i;
900 send_ldap_result( op, rs );
901 op->o_private = savepriv;
905 for ( i = 0; i < mi->mi_ntargets; i++ ) {
906 meta_search_candidate_t retcode = META_SEARCH_UNDEFINED;
907 metasingleconn_t *msc = &mc->mc_conns[ i ];
908 LDAPMessage *res = NULL, *msg;
910 /* if msgid is invalid, don't ldap_result() */
911 if ( candidates[ i ].sr_msgid == META_MSGID_IGNORE ) {
915 /* if target still needs bind, retry */
916 if ( candidates[ i ].sr_msgid == META_MSGID_NEED_BIND
917 || candidates[ i ].sr_msgid == META_MSGID_CONNECTING )
919 /* initiate dobind */
920 retcode = meta_search_dobind_init( op, rs, &mc, i, candidates );
922 Debug( LDAP_DEBUG_TRACE, "%s <<< meta_search_dobind_init[%ld]=%d\n",
923 op->o_log_prefix, i, retcode );
926 case META_SEARCH_NEED_BIND:
930 case META_SEARCH_CONNECTING:
931 case META_SEARCH_BINDING:
934 case META_SEARCH_ERR:
935 candidates[ i ].sr_err = rs->sr_err;
936 if ( META_BACK_ONERR_STOP( mi ) ) {
937 savepriv = op->o_private;
938 op->o_private = (void *)i;
939 send_ldap_result( op, rs );
940 op->o_private = savepriv;
945 case META_SEARCH_NOT_CANDIDATE:
947 * When no candidates are left,
948 * the outer cycle finishes
950 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
951 assert( ncandidates > 0 );
955 case META_SEARCH_CANDIDATE:
956 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
957 switch ( meta_back_search_start( op, rs, &dc, &mc, i, candidates ) )
959 case META_SEARCH_CANDIDATE:
960 assert( candidates[ i ].sr_msgid >= 0 );
963 case META_SEARCH_ERR:
964 candidates[ i ].sr_err = rs->sr_err;
965 if ( META_BACK_ONERR_STOP( mi ) ) {
966 savepriv = op->o_private;
967 op->o_private = (void *)i;
968 send_ldap_result( op, rs );
969 op->o_private = savepriv;
974 case META_SEARCH_NOT_CANDIDATE:
975 /* means that meta_back_search_start()
976 * failed but onerr == continue */
977 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
978 assert( ncandidates > 0 );
997 /* check for abandon */
998 if ( op->o_abandon || LDAP_BACK_CONN_ABANDON( mc ) ) {
1003 if ( msc->msc_ld == NULL ) {
1004 char buf[ SLAP_TEXT_BUFLEN ];
1006 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
1007 snprintf( buf, sizeof( buf ),
1008 "%s meta_back_search[%ld] mc=%p msgid=%d%s%s%s\n",
1009 op->o_log_prefix, (long)i, (void *)mc,
1010 candidates[ i ].sr_msgid,
1011 META_IS_BINDING( &candidates[ i ] ) ? " binding" : "",
1012 LDAP_BACK_CONN_BINDING( &mc->mc_conns[ i ] ) ? " connbinding" : "",
1013 META_BACK_CONN_CREATING( &mc->mc_conns[ i ] ) ? " conncreating" : "" );
1014 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
1016 Debug( LDAP_DEBUG_ANY, "!!! %s\n", buf, 0, 0 );
1018 #endif /* DEBUG_205 */
1021 * FIXME: handle time limit as well?
1022 * Note that target servers are likely
1023 * to handle it, so at some time we'll
1024 * get a LDAP_TIMELIMIT_EXCEEDED from
1028 rc = ldap_result( msc->msc_ld, candidates[ i ].sr_msgid,
1029 LDAP_MSG_RECEIVED, &tv, &res );
1032 /* FIXME: res should not need to be freed */
1033 assert( res == NULL );
1038 /* something REALLY bad happened! */
1039 if ( candidates[ i ].sr_type == REP_INTERMEDIATE ) {
1040 candidates[ i ].sr_type = REP_RESULT;
1042 if ( meta_back_retry( op, rs, &mc, i, LDAP_BACK_DONTSEND ) ) {
1043 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
1044 switch ( meta_back_search_start( op, rs, &dc, &mc, i, candidates ) )
1046 /* means that failed but onerr == continue */
1047 case META_SEARCH_NOT_CANDIDATE:
1048 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
1050 assert( ncandidates > 0 );
1053 candidates[ i ].sr_err = rs->sr_err;
1054 if ( META_BACK_ONERR_STOP( mi ) ) {
1055 savepriv = op->o_private;
1056 op->o_private = (void *)i;
1057 send_ldap_result( op, rs );
1058 op->o_private = savepriv;
1063 case META_SEARCH_CANDIDATE:
1064 /* get back into business... */
1067 case META_SEARCH_BINDING:
1068 case META_SEARCH_CONNECTING:
1069 case META_SEARCH_NEED_BIND:
1070 case META_SEARCH_UNDEFINED:
1074 /* unrecoverable error */
1075 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
1076 rc = rs->sr_err = LDAP_OTHER;
1081 candidates[ i ].sr_err = rs->sr_err;
1082 if ( META_BACK_ONERR_STOP( mi ) ) {
1083 savepriv = op->o_private;
1084 op->o_private = (void *)i;
1085 send_ldap_result( op, rs );
1086 op->o_private = savepriv;
1092 * When no candidates are left,
1093 * the outer cycle finishes
1095 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
1096 assert( ncandidates > 0 );
1098 rs->sr_err = candidates[ i ].sr_err;
1102 lastres_time = slap_get_time();
1104 /* only touch when activity actually took place... */
1105 if ( mi->mi_idle_timeout != 0 && msc->msc_time < lastres_time ) {
1106 msc->msc_time = lastres_time;
1111 for ( msg = ldap_first_message( msc->msc_ld, res );
1113 msg = ldap_next_message( msc->msc_ld, msg ) )
1115 rc = ldap_msgtype( msg );
1116 if ( rc == LDAP_RES_SEARCH_ENTRY ) {
1119 if ( candidates[ i ].sr_type == REP_INTERMEDIATE ) {
1120 /* don't retry any more... */
1121 candidates[ i ].sr_type = REP_RESULT;
1126 e = ldap_first_entry( msc->msc_ld, msg );
1127 savepriv = op->o_private;
1128 op->o_private = (void *)i;
1129 rs->sr_err = meta_send_entry( op, rs, mc, i, e );
1131 switch ( rs->sr_err ) {
1132 case LDAP_SIZELIMIT_EXCEEDED:
1133 savepriv = op->o_private;
1134 op->o_private = (void *)i;
1135 send_ldap_result( op, rs );
1136 op->o_private = savepriv;
1137 rs->sr_err = LDAP_SUCCESS;
1138 ldap_msgfree( res );
1142 case LDAP_UNAVAILABLE:
1143 rs->sr_err = LDAP_OTHER;
1144 ldap_msgfree( res );
1148 op->o_private = savepriv;
1150 /* don't wait any longer... */
1153 save_tv.tv_usec = 0;
1155 } else if ( rc == LDAP_RES_SEARCH_REFERENCE ) {
1156 char **references = NULL;
1159 if ( candidates[ i ].sr_type == REP_INTERMEDIATE ) {
1160 /* don't retry any more... */
1161 candidates[ i ].sr_type = REP_RESULT;
1166 rc = ldap_parse_reference( msc->msc_ld, msg,
1167 &references, &rs->sr_ctrls, 0 );
1169 if ( rc != LDAP_SUCCESS ) {
1173 if ( references == NULL ) {
1177 #ifdef ENABLE_REWRITE
1178 dc.ctx = "referralDN";
1179 #else /* ! ENABLE_REWRITE */
1182 #endif /* ! ENABLE_REWRITE */
1184 /* FIXME: merge all and return at the end */
1186 for ( cnt = 0; references[ cnt ]; cnt++ )
1189 rs->sr_ref = ch_calloc( sizeof( struct berval ), cnt + 1 );
1191 for ( cnt = 0; references[ cnt ]; cnt++ ) {
1192 ber_str2bv( references[ cnt ], 0, 1, &rs->sr_ref[ cnt ] );
1194 BER_BVZERO( &rs->sr_ref[ cnt ] );
1196 ( void )ldap_back_referral_result_rewrite( &dc, rs->sr_ref );
1198 if ( rs->sr_ref != NULL && !BER_BVISNULL( &rs->sr_ref[ 0 ] ) ) {
1199 /* ignore return value by now */
1200 savepriv = op->o_private;
1201 op->o_private = (void *)i;
1202 ( void )send_search_reference( op, rs );
1203 op->o_private = savepriv;
1205 ber_bvarray_free( rs->sr_ref );
1211 ber_memvfree( (void **)references );
1214 if ( rs->sr_ctrls ) {
1215 ldap_controls_free( rs->sr_ctrls );
1216 rs->sr_ctrls = NULL;
1219 } else if ( rc == LDAP_RES_SEARCH_RESULT ) {
1220 char buf[ SLAP_TEXT_BUFLEN ];
1221 char **references = NULL;
1223 if ( candidates[ i ].sr_type == REP_INTERMEDIATE ) {
1224 /* don't retry any more... */
1225 candidates[ i ].sr_type = REP_RESULT;
1228 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
1230 /* NOTE: ignores response controls
1231 * (and intermediate response controls
1232 * as well, except for those with search
1233 * references); this may not be correct,
1234 * but if they're not ignored then
1235 * back-meta would need to merge them
1236 * consistently (think of pagedResults...)
1238 /* FIXME: response controls? */
1239 rs->sr_err = ldap_parse_result( msc->msc_ld,
1241 &candidates[ i ].sr_err,
1242 (char **)&candidates[ i ].sr_matched,
1243 NULL /* (char **)&candidates[ i ].sr_text */ ,
1245 NULL /* &candidates[ i ].sr_ctrls (unused) */ ,
1247 if ( rs->sr_err != LDAP_SUCCESS ) {
1248 sres = slap_map_api2result( &candidates[ i ] );
1249 candidates[ i ].sr_type = REP_RESULT;
1250 ldap_msgfree( res );
1255 rs->sr_err = candidates[ i ].sr_err;
1257 /* massage matchedDN if need be */
1258 if ( candidates[ i ].sr_matched != NULL ) {
1259 struct berval match, mmatch;
1261 ber_str2bv( candidates[ i ].sr_matched,
1263 candidates[ i ].sr_matched = NULL;
1265 dc.ctx = "matchedDN";
1266 dc.target = mi->mi_targets[ i ];
1267 if ( !ldap_back_dn_massage( &dc, &match, &mmatch ) ) {
1268 if ( mmatch.bv_val == match.bv_val ) {
1269 candidates[ i ].sr_matched
1270 = ch_strdup( mmatch.bv_val );
1273 candidates[ i ].sr_matched = mmatch.bv_val;
1278 ldap_memfree( match.bv_val );
1281 /* add references to array */
1282 /* RFC 4511: referrals can only appear
1283 * if result code is LDAP_REFERRAL */
1284 if ( references != NULL
1285 && references[ 0 ] != NULL
1286 && references[ 0 ][ 0 ] != '\0' )
1288 if ( rs->sr_err != LDAP_REFERRAL ) {
1289 Debug( LDAP_DEBUG_ANY,
1290 "%s meta_back_search[%ld]: "
1291 "got referrals with err=%d\n",
1299 for ( cnt = 0; references[ cnt ]; cnt++ )
1302 sr_ref = ch_calloc( sizeof( struct berval ), cnt + 1 );
1304 for ( cnt = 0; references[ cnt ]; cnt++ ) {
1305 ber_str2bv( references[ cnt ], 0, 1, &sr_ref[ cnt ] );
1307 BER_BVZERO( &sr_ref[ cnt ] );
1309 ( void )ldap_back_referral_result_rewrite( &dc, sr_ref );
1311 if ( rs->sr_v2ref == NULL ) {
1312 rs->sr_v2ref = sr_ref;
1315 for ( cnt = 0; !BER_BVISNULL( &sr_ref[ cnt ] ); cnt++ ) {
1316 ber_bvarray_add( &rs->sr_v2ref, &sr_ref[ cnt ] );
1318 ber_memfree( sr_ref );
1322 } else if ( rs->sr_err == LDAP_REFERRAL ) {
1323 Debug( LDAP_DEBUG_ANY,
1324 "%s meta_back_search[%ld]: "
1325 "got err=%d with null "
1326 "or empty referrals\n",
1330 rs->sr_err = LDAP_NO_SUCH_OBJECT;
1334 ber_memvfree( (void **)references );
1336 sres = slap_map_api2result( rs );
1338 if ( LogTest( LDAP_DEBUG_TRACE | LDAP_DEBUG_ANY ) ) {
1339 snprintf( buf, sizeof( buf ),
1340 "%s meta_back_search[%ld] "
1341 "match=\"%s\" err=%ld",
1342 op->o_log_prefix, i,
1343 candidates[ i ].sr_matched ? candidates[ i ].sr_matched : "",
1344 (long) candidates[ i ].sr_err );
1345 if ( candidates[ i ].sr_err == LDAP_SUCCESS ) {
1346 Debug( LDAP_DEBUG_TRACE, "%s.\n", buf, 0, 0 );
1349 Debug( LDAP_DEBUG_ANY, "%s (%s).\n",
1350 buf, ldap_err2string( candidates[ i ].sr_err ), 0 );
1355 case LDAP_NO_SUCH_OBJECT:
1356 /* is_ok is touched any time a valid
1357 * (even intermediate) result is
1358 * returned; as a consequence, if
1359 * a candidate returns noSuchObject
1360 * it is ignored and the candidate
1361 * is simply demoted. */
1363 sres = LDAP_SUCCESS;
1372 case LDAP_SIZELIMIT_EXCEEDED:
1373 /* if a target returned sizelimitExceeded
1374 * and the entry count is equal to the
1375 * proxy's limit, the target would have
1376 * returned more, and the error must be
1377 * propagated to the client; otherwise,
1378 * the target enforced a limit lower
1379 * than what requested by the proxy;
1381 candidates[ i ].sr_err = rs->sr_err;
1382 if ( rs->sr_nentries == op->ors_slimit
1383 || META_BACK_ONERR_STOP( mi ) )
1385 savepriv = op->o_private;
1386 op->o_private = (void *)i;
1387 send_ldap_result( op, rs );
1388 op->o_private = savepriv;
1389 ldap_msgfree( res );
1396 candidates[ i ].sr_err = rs->sr_err;
1397 if ( META_BACK_ONERR_STOP( mi ) ) {
1398 savepriv = op->o_private;
1399 op->o_private = (void *)i;
1400 send_ldap_result( op, rs );
1401 op->o_private = savepriv;
1402 ldap_msgfree( res );
1413 * When no candidates are left,
1414 * the outer cycle finishes
1416 assert( ncandidates > 0 );
1419 } else if ( rc == LDAP_RES_BIND ) {
1420 meta_search_candidate_t retcode;
1422 retcode = meta_search_dobind_result( op, rs, &mc, i, candidates, msg );
1423 if ( retcode == META_SEARCH_CANDIDATE ) {
1424 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
1425 retcode = meta_back_search_start( op, rs, &dc, &mc, i, candidates );
1428 switch ( retcode ) {
1429 case META_SEARCH_CANDIDATE:
1432 /* means that failed but onerr == continue */
1433 case META_SEARCH_NOT_CANDIDATE:
1434 case META_SEARCH_ERR:
1435 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
1436 assert( ncandidates > 0 );
1439 candidates[ i ].sr_err = rs->sr_err;
1440 if ( META_BACK_ONERR_STOP( mi ) ) {
1441 savepriv = op->o_private;
1442 op->o_private = (void *)i;
1443 send_ldap_result( op, rs );
1444 op->o_private = savepriv;
1445 ldap_msgfree( res );
1458 ldap_msgfree( res );
1465 ldap_msgfree( res );
1469 /* check for abandon */
1470 if ( op->o_abandon || LDAP_BACK_CONN_ABANDON( mc ) ) {
1471 for ( i = 0; i < mi->mi_ntargets; i++ ) {
1472 if ( candidates[ i ].sr_msgid >= 0
1473 || candidates[ i ].sr_msgid == META_MSGID_CONNECTING )
1475 if ( META_IS_BINDING( &candidates[ i ] )
1476 || candidates[ i ].sr_msgid == META_MSGID_CONNECTING )
1478 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
1479 if ( LDAP_BACK_CONN_BINDING( &mc->mc_conns[ i ] )
1480 || candidates[ i ].sr_msgid == META_MSGID_CONNECTING )
1482 /* if still binding, destroy */
1485 char buf[ SLAP_TEXT_BUFLEN ];
1487 snprintf( buf, sizeof( buf), "%s meta_back_search(abandon) "
1488 "ldap_unbind_ext[%ld] mc=%p ld=%p",
1489 op->o_log_prefix, i, (void *)mc,
1490 (void *)mc->mc_conns[i].msc_ld );
1492 Debug( LDAP_DEBUG_ANY, "### %s\n", buf, 0, 0 );
1493 #endif /* DEBUG_205 */
1495 meta_clear_one_candidate( op, mc, i );
1497 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
1498 META_BINDING_CLEAR( &candidates[ i ] );
1501 (void)meta_back_cancel( mc, op, rs,
1502 candidates[ i ].sr_msgid, i,
1503 LDAP_BACK_DONTSEND );
1506 candidates[ i ].sr_msgid = META_MSGID_IGNORE;
1507 assert( ncandidates > 0 );
1512 if ( op->o_abandon ) {
1516 /* let send_ldap_result play cleanup handlers (ITS#4645) */
1520 /* if no entry was found during this loop,
1521 * set a minimal timeout */
1522 if ( ncandidates > 0 && gotit == 0 ) {
1523 if ( save_tv.tv_sec == 0 && save_tv.tv_usec == 0 ) {
1524 save_tv.tv_usec = LDAP_BACK_RESULT_UTIMEOUT/initial_candidates;
1526 /* arbitrarily limit to something between 1 and 2 minutes */
1527 } else if ( ( stoptime == -1 && save_tv.tv_sec < 60 )
1528 || save_tv.tv_sec < ( stoptime - slap_get_time() ) / ( 2 * ncandidates ) )
1530 /* double the timeout */
1531 lutil_timermul( &save_tv, 2, &save_tv );
1534 if ( alreadybound == 0 ) {
1536 (void)select( 0, NULL, NULL, NULL, &tv );
1539 ldap_pvt_thread_yield();
1546 * FIXME: need a better strategy to handle errors
1549 rc = meta_back_op_result( mc, op, rs, META_TARGET_NONE,
1550 -1, stoptime != -1 ? (stoptime - slap_get_time()) : 0,
1551 LDAP_BACK_SENDERR );
1559 * Rewrite the matched portion of the search base, if required
1561 * FIXME: only the last one gets caught!
1563 savepriv = op->o_private;
1564 op->o_private = (void *)(long)mi->mi_ntargets;
1565 if ( candidate_match > 0 ) {
1566 struct berval pmatched = BER_BVNULL;
1568 /* we use the first one */
1569 for ( i = 0; i < mi->mi_ntargets; i++ ) {
1570 if ( META_IS_CANDIDATE( &candidates[ i ] )
1571 && candidates[ i ].sr_matched != NULL )
1573 struct berval bv, pbv;
1576 /* if we got success, and this target
1577 * returned noSuchObject, and its suffix
1578 * is a superior of the searchBase,
1579 * ignore the matchedDN */
1580 if ( sres == LDAP_SUCCESS
1581 && candidates[ i ].sr_err == LDAP_NO_SUCH_OBJECT
1582 && op->o_req_ndn.bv_len > mi->mi_targets[ i ]->mt_nsuffix.bv_len )
1584 free( (char *)candidates[ i ].sr_matched );
1585 candidates[ i ].sr_matched = NULL;
1589 ber_str2bv( candidates[ i ].sr_matched, 0, 0, &bv );
1590 rc = dnPretty( NULL, &bv, &pbv, op->o_tmpmemctx );
1592 if ( rc == LDAP_SUCCESS ) {
1594 /* NOTE: if they all are superiors
1595 * of the baseDN, the shorter is also
1596 * superior of the longer... */
1597 if ( pbv.bv_len > pmatched.bv_len ) {
1598 if ( !BER_BVISNULL( &pmatched ) ) {
1599 op->o_tmpfree( pmatched.bv_val, op->o_tmpmemctx );
1602 op->o_private = (void *)i;
1605 op->o_tmpfree( pbv.bv_val, op->o_tmpmemctx );
1609 if ( candidates[ i ].sr_matched != NULL ) {
1610 free( (char *)candidates[ i ].sr_matched );
1611 candidates[ i ].sr_matched = NULL;
1616 if ( !BER_BVISNULL( &pmatched ) ) {
1617 matched = pmatched.bv_val;
1620 } else if ( sres == LDAP_NO_SUCH_OBJECT ) {
1621 matched = op->o_bd->be_suffix[ 0 ].bv_val;
1625 * In case we returned at least one entry, we return LDAP_SUCCESS
1626 * otherwise, the latter error code we got
1629 if ( sres == LDAP_SUCCESS ) {
1630 if ( rs->sr_v2ref ) {
1631 sres = LDAP_REFERRAL;
1634 if ( META_BACK_ONERR_REPORT( mi ) ) {
1636 * Report errors, if any
1638 * FIXME: we should handle error codes and return the more
1639 * important/reasonable
1641 for ( i = 0; i < mi->mi_ntargets; i++ ) {
1642 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
1646 if ( candidates[ i ].sr_err != LDAP_SUCCESS
1647 && candidates[ i ].sr_err != LDAP_NO_SUCH_OBJECT )
1649 sres = candidates[ i ].sr_err;
1657 rs->sr_matched = matched;
1658 rs->sr_ref = ( sres == LDAP_REFERRAL ? rs->sr_v2ref : NULL );
1659 send_ldap_result( op, rs );
1660 op->o_private = savepriv;
1661 rs->sr_matched = NULL;
1665 if ( matched && matched != op->o_bd->be_suffix[ 0 ].bv_val ) {
1666 op->o_tmpfree( matched, op->o_tmpmemctx );
1669 if ( rs->sr_v2ref ) {
1670 ber_bvarray_free( rs->sr_v2ref );
1673 for ( i = 0; i < mi->mi_ntargets; i++ ) {
1674 if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
1679 if ( META_IS_BINDING( &candidates[ i ] )
1680 || candidates[ i ].sr_msgid == META_MSGID_CONNECTING )
1682 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
1683 if ( LDAP_BACK_CONN_BINDING( &mc->mc_conns[ i ] )
1684 || candidates[ i ].sr_msgid == META_MSGID_CONNECTING )
1686 assert( candidates[ i ].sr_msgid >= 0
1687 || candidates[ i ].sr_msgid == META_MSGID_CONNECTING );
1688 assert( mc->mc_conns[ i ].msc_ld != NULL );
1691 Debug( LDAP_DEBUG_ANY, "### %s meta_back_search(cleanup) "
1692 "ldap_unbind_ext[%ld] ld=%p\n",
1693 op->o_log_prefix, i, (void *)mc->mc_conns[i].msc_ld );
1694 #endif /* DEBUG_205 */
1696 /* if still binding, destroy */
1697 meta_clear_one_candidate( op, mc, i );
1699 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
1700 META_BINDING_CLEAR( &candidates[ i ] );
1702 } else if ( candidates[ i ].sr_msgid >= 0 ) {
1703 (void)meta_back_cancel( mc, op, rs,
1704 candidates[ i ].sr_msgid, i,
1705 LDAP_BACK_DONTSEND );
1709 if ( candidates[ i ].sr_matched ) {
1710 free( (char *)candidates[ i ].sr_matched );
1711 candidates[ i ].sr_matched = NULL;
1714 if ( candidates[ i ].sr_text ) {
1715 ldap_memfree( (char *)candidates[ i ].sr_text );
1716 candidates[ i ].sr_text = NULL;
1719 if ( candidates[ i ].sr_ref ) {
1720 ber_bvarray_free( candidates[ i ].sr_ref );
1721 candidates[ i ].sr_ref = NULL;
1724 if ( candidates[ i ].sr_ctrls ) {
1725 ldap_controls_free( candidates[ i ].sr_ctrls );
1726 candidates[ i ].sr_ctrls = NULL;
1729 if ( META_BACK_TGT_QUARANTINE( mi->mi_targets[ i ] ) ) {
1730 meta_back_quarantine( op, &candidates[ i ], i );
1733 /* only in case of timelimit exceeded, if the timelimit exceeded because
1734 * one contacted target never responded, invalidate the connection
1735 * NOTE: should we quarantine the target as well? right now, the connection
1736 * is invalidated; the next time it will be recreated and the target
1737 * will be quarantined if it cannot be contacted */
1738 if ( mi->mi_idle_timeout != 0
1739 && rs->sr_err == LDAP_TIMELIMIT_EXCEEDED
1740 && op->o_time > mc->mc_conns[ i ].msc_time )
1742 /* don't let anyone else use this expired connection */
1743 LDAP_BACK_CONN_TAINTED_SET( mc );
1748 meta_back_release_conn( mi, mc );
1762 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
1763 struct berval a, mapped;
1764 int check_duplicate_attrs = 0;
1766 BerElement ber = *e->lm_ber;
1767 Attribute *attr, **attrp;
1774 if ( ber_scanf( &ber, "{m{", &bdn ) == LBER_ERROR ) {
1775 return LDAP_DECODING_ERROR;
1779 * Rewrite the dn of the result, if needed
1781 dc.target = mi->mi_targets[ target ];
1782 dc.conn = op->o_conn;
1784 dc.ctx = "searchResult";
1786 rs->sr_err = ldap_back_dn_massage( &dc, &bdn, &dn );
1787 if ( rs->sr_err != LDAP_SUCCESS) {
1792 * Note: this may fail if the target host(s) schema differs
1793 * from the one known to the meta, and a DN with unknown
1794 * attributes is returned.
1796 * FIXME: should we log anything, or delegate to dnNormalize?
1798 rc = dnPrettyNormal( NULL, &dn, &ent.e_name, &ent.e_nname,
1800 if ( dn.bv_val != bdn.bv_val ) {
1805 if ( rc != LDAP_SUCCESS ) {
1806 return LDAP_INVALID_DN_SYNTAX;
1812 if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED ) {
1813 ( void )meta_dncache_update_entry( &mi->mi_cache,
1814 &ent.e_nname, target );
1817 attrp = &ent.e_attrs;
1819 dc.ctx = "searchAttrDN";
1820 while ( ber_scanf( &ber, "{m", &a ) != LBER_ERROR ) {
1822 slap_syntax_validate_func *validate;
1823 slap_syntax_transform_func *pretty;
1825 ldap_back_map( &mi->mi_targets[ target ]->mt_rwmap.rwm_at,
1826 &a, &mapped, BACKLDAP_REMAP );
1827 if ( BER_BVISNULL( &mapped ) || mapped.bv_val[0] == '\0' ) {
1828 ( void )ber_scanf( &ber, "x" /* [W] */ );
1831 if ( mapped.bv_val != a.bv_val ) {
1832 /* will need to check for duplicate attrs */
1833 check_duplicate_attrs++;
1835 attr = attr_alloc( NULL );
1836 if ( attr == NULL ) {
1839 if ( slap_bv2ad( &mapped, &attr->a_desc, &text )
1841 if ( slap_bv2undef_ad( &mapped, &attr->a_desc, &text,
1842 SLAP_AD_PROXIED ) != LDAP_SUCCESS )
1844 char buf[ SLAP_TEXT_BUFLEN ];
1846 snprintf( buf, sizeof( buf ),
1847 "%s meta_send_entry(\"%s\"): "
1848 "slap_bv2undef_ad(%s): %s\n",
1849 op->o_log_prefix, ent.e_name.bv_val,
1850 mapped.bv_val, text );
1852 Debug( LDAP_DEBUG_ANY, "%s", buf, 0, 0 );
1858 /* no subschemaSubentry */
1859 if ( attr->a_desc == slap_schema.si_ad_subschemaSubentry
1860 || attr->a_desc == slap_schema.si_ad_entryDN )
1864 * We eat target's subschemaSubentry because
1865 * a search for this value is likely not
1866 * to resolve to the appropriate backend;
1867 * later, the local subschemaSubentry is
1870 * We also eat entryDN because the frontend
1871 * will reattach it without checking if already
1874 ( void )ber_scanf( &ber, "x" /* [W] */ );
1880 if ( ber_scanf( &ber, "[W]", &attr->a_vals ) == LBER_ERROR
1881 || attr->a_vals == NULL )
1883 attr->a_vals = (struct berval *)&slap_dummy_bv;
1886 for ( last = 0; !BER_BVISNULL( &attr->a_vals[ last ] ); ++last )
1890 validate = attr->a_desc->ad_type->sat_syntax->ssyn_validate;
1891 pretty = attr->a_desc->ad_type->sat_syntax->ssyn_pretty;
1893 if ( !validate && !pretty ) {
1898 if ( attr->a_desc == slap_schema.si_ad_objectClass
1899 || attr->a_desc == slap_schema.si_ad_structuralObjectClass )
1903 for ( bv = attr->a_vals; !BER_BVISNULL( bv ); bv++ ) {
1904 ldap_back_map( &mi->mi_targets[ target ]->mt_rwmap.rwm_oc,
1905 bv, &mapped, BACKLDAP_REMAP );
1906 if ( BER_BVISNULL( &mapped ) || mapped.bv_val[0] == '\0') {
1913 *bv = attr->a_vals[ last ];
1914 BER_BVZERO( &attr->a_vals[ last ] );
1917 } else if ( mapped.bv_val != bv->bv_val ) {
1920 for ( i = 0; !BER_BVISNULL( &attr->a_vals[ i ] ); i++ ) {
1921 if ( &attr->a_vals[ i ] == bv ) {
1925 if ( ber_bvstrcasecmp( &mapped, &attr->a_vals[ i ] ) == 0 ) {
1930 if ( !BER_BVISNULL( &attr->a_vals[ i ] ) ) {
1934 ber_bvreplace( bv, &mapped );
1938 * It is necessary to try to rewrite attributes with
1939 * dn syntax because they might be used in ACLs as
1940 * members of groups; since ACLs are applied to the
1941 * rewritten stuff, no dn-based subecj clause could
1942 * be used at the ldap backend side (see
1943 * http://www.OpenLDAP.org/faq/data/cache/452.html)
1944 * The problem can be overcome by moving the dn-based
1945 * ACLs to the target directory server, and letting
1946 * everything pass thru the ldap backend.
1951 if ( attr->a_desc->ad_type->sat_syntax ==
1952 slap_schema.si_syn_distinguishedName )
1954 ldap_dnattr_result_rewrite( &dc, attr->a_vals );
1956 } else if ( attr->a_desc == slap_schema.si_ad_ref ) {
1957 ldap_back_referral_result_rewrite( &dc, attr->a_vals );
1961 for ( i = 0; i < last; i++ ) {
1966 rc = pretty( attr->a_desc->ad_type->sat_syntax,
1967 &attr->a_vals[i], &pval, NULL );
1970 rc = validate( attr->a_desc->ad_type->sat_syntax,
1975 LBER_FREE( attr->a_vals[i].bv_val );
1976 if ( --last == i ) {
1977 BER_BVZERO( &attr->a_vals[ i ] );
1980 attr->a_vals[i] = attr->a_vals[last];
1981 BER_BVZERO( &attr->a_vals[last] );
1987 LBER_FREE( attr->a_vals[i].bv_val );
1988 attr->a_vals[i] = pval;
1992 if ( last == 0 && attr->a_vals != &slap_dummy_bv ) {
1998 if ( last && attr->a_desc->ad_type->sat_equality &&
1999 attr->a_desc->ad_type->sat_equality->smr_normalize )
2003 attr->a_nvals = ch_malloc( ( last + 1 ) * sizeof( struct berval ) );
2004 for ( i = 0; i<last; i++ ) {
2005 attr->a_desc->ad_type->sat_equality->smr_normalize(
2006 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
2007 attr->a_desc->ad_type->sat_syntax,
2008 attr->a_desc->ad_type->sat_equality,
2009 &attr->a_vals[i], &attr->a_nvals[i],
2012 BER_BVZERO( &attr->a_nvals[i] );
2015 attr->a_nvals = attr->a_vals;
2019 attrp = &attr->a_next;
2023 /* only check if some mapping occurred */
2024 if ( check_duplicate_attrs ) {
2027 for ( ap = &ent.e_attrs; *ap != NULL; ap = &(*ap)->a_next ) {
2030 for ( tap = &(*ap)->a_next; *tap != NULL; ) {
2031 if ( (*tap)->a_desc == (*ap)->a_desc ) {
2033 Modification mod = { 0 };
2034 const char *text = NULL;
2035 char textbuf[ SLAP_TEXT_BUFLEN ];
2036 Attribute *next = (*tap)->a_next;
2038 BER_BVSTR( &e.e_name, "" );
2039 BER_BVSTR( &e.e_nname, "" );
2041 mod.sm_op = LDAP_MOD_ADD;
2042 mod.sm_desc = (*ap)->a_desc;
2043 mod.sm_type = mod.sm_desc->ad_cname;
2044 mod.sm_values = (*tap)->a_vals;
2045 mod.sm_nvalues = (*tap)->a_nvals;
2047 (void)modify_add_values( &e, &mod,
2049 &text, textbuf, sizeof( textbuf ) );
2051 /* should not insert new attrs! */
2052 assert( e.e_attrs == *ap );
2058 tap = &(*tap)->a_next;
2064 ldap_get_entry_controls( mc->mc_conns[target].msc_ld,
2066 rs->sr_entry = &ent;
2067 rs->sr_attrs = op->ors_attrs;
2068 rs->sr_operational_attrs = NULL;
2070 rs->sr_err = LDAP_SUCCESS;
2071 rc = send_search_entry( op, rs );
2073 case LDAP_UNAVAILABLE:
2077 rs->sr_entry = NULL;
2078 rs->sr_attrs = NULL;
2079 if ( rs->sr_ctrls != NULL ) {
2080 ldap_controls_free( rs->sr_ctrls );
2081 rs->sr_ctrls = NULL;
2083 if ( !BER_BVISNULL( &ent.e_name ) ) {
2084 free( ent.e_name.bv_val );
2085 BER_BVZERO( &ent.e_name );
2087 if ( !BER_BVISNULL( &ent.e_nname ) ) {
2088 free( ent.e_nname.bv_val );
2089 BER_BVZERO( &ent.e_nname );
2091 entry_clean( &ent );